UPS系统中PWM整流器的研究  

Study of PWM Rectifier in UPS System

作　　者：刘岫岭[1] 

机构地区：[1]黑龙江科技大学,哈尔滨150022

出　　处：《价值工程》2016年第6期146-148,共3页Value Engineering

摘　　要：针对传统UPS电源系统在低压时电压利用率低、谐波大的缺点,提出一种双闭环参数整定的方法,该方法将传统单相电压型PWMUPS系统改进为双闭环系统的参数整定方案,采用电流内环、电压外环相结合的双闭环控制方式,再通过理论分析、建模和仿真,最终达到系统功率因数接近于1的目的;仿真结果与理论分析的结果基本相同,验证了此方法的正确性和可行性。In view of the low utilization ratio and big harmonic of traditional UPS power supply system when in low voltage, a double closed-loop parameters setting method is proposed, which improves the traditional single-phase voltage type PWMUPS system to double closed loop system parameter setting, adopting the combination of current inner loop andvoltage outer loop double closed loop control method, and through theoretical analysis, modeling and simulation, finally achieving the goal that system powerfactor is close to 1. The simulation results and theoretical analysis results are basically the same, which verifies the correctness and feasibility of the method.

关 键 词：PWM整流器 UPS 谐波污染 正弦波脉宽调制 

分 类 号：TM461[电气工程—电器]